Download App

Electromagnetic Induction — Physics STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 SciencePhysicsElectromagnetic Induction1 Mark
Question
If the magnetic field outside a copper box is suddenly changed, what happens to the magnetic field inside the box? Such low-resistivity metals are used to form enclosures which shield objects inside them against varying magnetic fields.
✓

Answer

Current on its surface changes but no magnetic feild passes through it as magnetic field inside the copper box is zero.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "1 Marks Question" from Electromagnetic Induction→Electromagnetic Induction — all question types→Physics STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

In an open organ pipe, third harmonic is 450Hz. What is the frequency of fifth harmonic?
→
Can water be made to boil without heating?
→
What is shearing strain of a material?
→
State Carnot's principle.
→
The Young's modulus of a wire of length L and radius r is Y. If the length is reduced to $\frac{\text{r}}{2}$ and radius $\frac{\text{r}}{2}.$ What will be its Young's modulus?
→
An NCC parade is going at a uniform speed of 6km/h through a place under a berry tree on which a bird is sitting at a height of 12.1m. At a particular instant the bird drops a berry. Which cadet (give the distance from the tree at the instant) will receive the berry on his uniform?
→
State the factors on which the speed of a wave travelling along a stretched ideal string depends.
→
Science, like any knowledge, can be put to good or bad use, depending on the user. Given below are some of the applications of science. Formulate your views on whether the particular application is good, bad or something that cannot be so clearly categorised:
  1. Mass vaccination against small pox to curb and finally eradicate this disease from the population. $($This has already been successfully done in India$)$.
  2. Television for eradication of illiteracy and for mass communication of news and ideas.
  3. Prenatal sex determination.
  4. Computers for increase in work efficiency.
  5. Putting artificial satellites into orbits around the Earth.
  6. Development of nuclear weapons.
  7. Development of new and powerful techniques of chemical and biological warfare.
  8. Purification of water for drinking.
  9. Plastic surgery.
  10. Cloning.
→
Which is greater: nuclear force or electrostatic force?
→
The pressure of a gas at -173°C is 1 atmosphere. Keeping the volume constant, to what temperature should the gas be heated so that its pressure becomes 2 atmosphere.
→